<?php
/**
 * Created by QRimage.php
 * Author: LiaoJiangYi
 * Date: 2015/10/29 11:10
 */
namespace Ext\QRCode;
class QRimage
{

    //----------------------------------------------------------------------
    public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE)
    {
        $image = self::image($frame, $pixelPerPoint, $outerFrame);

        if ($filename === false) {
            header("Content-type: image/png");
            imagepng($image);
        } else {
            if($saveandprint===TRUE){
                imagepng($image, $filename);
                header("Content-type: image/png");
                imagepng($image);
            }else{
                imagepng($image, $filename);
            }
        }
        imagedestroy($image);
    }

    //----------------------------------------------------------------------
    public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85)
    {
        $image = self::image($frame, $pixelPerPoint, $outerFrame);

        if ($filename === false) {
            header("Content-type: image/jpeg");
            imagejpeg($image, null, $q);
        } else {
            imagejpeg($image, $filename, $q);
        }
        imagedestroy($image);
    }

    //----------------------------------------------------------------------
    private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4)
    {
        $h = count($frame);
        $w = strlen($frame[0]);
        $imgW = $w + 2*$outerFrame;
        $imgH = $h + 2*$outerFrame;
        $base_image =imagecreate($imgW, $imgH);
        $col[0] = imagecolorallocate($base_image,255,255,255);
        $col[1] = imagecolorallocate($base_image,0,0,0);
        imagefill($base_image, 0, 0, $col[0]);
        for($y=0; $y<$h; $y++) {
            for($x=0; $x<$w; $x++) {
                if ($frame[$y][$x] == '1') {
                    imagesetpixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]);
                }
            }
        }
        $target_image =imagecreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
        imagecopyresized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
        imagedestroy($base_image);
        return $target_image;
    }
}